The eyes of the Prince, when he heard this proposal, sparkled with joy. The execution was easy and the success certain. No time was now lost. They hastened early in the morning to choose a place proper for their mine. They clambered with great fatigue among crags and brambles, and returned without having discovered any part that favoured their design. The second and the third day were spent in the same manner, and with the same frustration; but on the fourth day they found a small cavern concealed by a thicket, where they resolved to make their experiment. Imlac procured instruments proper to hew stone and remove earth, and they fell to their work on the next day with more eagerness than vigour. They were presently exhausted by their efforts, and sat down to pant upon the grass. The Prince for a moment appeared to be discouraged. “Sir,” said his companion, “practice will enable us to continue our labour for a longer time. Mark, however, how far we have advanced, and ye will find that our toil will some time have an end. Great works are performed not by strength, but perseverance; yonder palace was raised by single stones, yet you see its height and spaciousness. He that shall walk with vigour three hours a day, will pass in seven years a space equal to the circumference of the globe.” They returned to their work day after day, and in a short time found a fissure in the rock, which enabled them to pass far with very little obstruction. This Rasselas considered as a good omen. “Do not disturb your mind,” said Imlac, “with other hopes or fears than reason may suggest; if you are pleased with the prognostics of good, you will be terrified likewise with tokens of evil, and your whole life will be a prey to superstition. Whatever facilitates our work is more than an omen; it is a cause of success. This is one of those pleasing surprises which often happen to active resolution. Many things difficult to design prove easy to performance.” CHAPTER XIV RASSELAS AND IMLAC RECEIVE AN UNEXPECTED VISIT. THEY had now wrought their way to the middle, and solaced their toil with the approach of liberty, when the Prince, coming down to refresh himself with air, found his sister Nekayah standing at the mouth of the cavity. He started, and stood confused, afraid to tell his design, and yet hopeless to conceal it. A few moments determined him to repose on her fidelity, and secure her secrecy by a declaration without reserve.